Lambeth’s deputy mayor and her son have been arrested after an early morning attack that left a man with a broken jaw, broken ribs and requiring 27 stitches.

Councillor Judith Best was arrested after 41-year-old Neil Potter, of Fullsbrook Road, Streatham, was assaulted in Madeira Road in the early hours of Friday morning.

Coun Best, 51, was detained after attending a police station on Saturday.

Her son, Scott Richards, 31, was captured on Sunday following a police chase, and police are still looking for others in connection with the incident.

Lambeth police attended the scene shortly after 3.20am and an ambulance took Mr Potter to a south London hospital, where he needed 27 stitches for his injuries.

He had an operation on his jaw the next day.

His father, Steve Potter, said he would be forced to eat soft food for at least eight weeks, adding “he is lucky to be alive”.

Police charged Mr Richards with grievous bodily harm. He remains in custody at a south London police station.

Coun Best, the Liberal Democrat councillor for Streatham Wells ward, was arrested for actual bodily harm with conspiracy to commit grievous bodily harm and has been bailed to return to a south London police station in September.

Coun Best is currently vice chairman of the young people’s service scrutiny sub-committee and sits on the council’s corporate parenting board.

She did not return calls from the Streatham Guardian.

A Lambeth police spokesman confirmed Mr Richard’s was arrested after a police chase, adding detectives were “still looking for outstanding suspects”.

Lambeth police's GBH unit is investigating. Anyone with information should call 020 8649 2012 or call Crimestoppers anonymously on 0800 555 111.